Bug 240661

Summary:

[GStreamer] REGRESSION(r288092): Deadlock when the playback is stopping just right after startup

Product:

WebKit

Reporter:

Yacine Bandou <bandou.yacine>

Component:

Media

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

olivier.blin, pnormand, webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

WebKit Nightly Build

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
Patch	none
Patch	none
Patch	none

Yacine Bandou

Reported 2022-05-19 09:43:25 PDT

r288092 causes a deadlock with the "28. ChangeType.H264.VP9" test in "https://ytlr-cert.appspot.com/2020/main.html". The background thread locks the GStPad and sends a notify::caps signal which is caught by VideoTrackPrivateGStreamer that calls callOnMainThreadAndWait. At the same time the main thread destroys MediaPlayerPrivateGStreamer and sets the pipeline to NULL that calls "gst_pad_set_active" which wants to lock the GStPad. See https://bugs.webkit.org/show_bug.cgi?id=234084

Attachments
Patch (9.58 KB, patch) 2022-05-19 09:57 PDT, Yacine Bandou	no flags	Details Formatted Diff Diff
Patch (11.36 KB, patch) 2022-05-19 10:15 PDT, Yacine Bandou	no flags	Details Formatted Diff Diff
Patch (9.16 KB, patch) 2022-05-19 14:32 PDT, Yacine Bandou	no flags	Details Formatted Diff Diff
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